Nissanka, B. G. (1977). Cohesion and interaction between formal student groups in a specialized community, by Gamini Nissanka [microform]. Photoduplication Service. University of the Philippines Library.
Chicago-referens (17:e uppl.)Nissanka, Bandhupriya Gamini. Cohesion and Interaction Between Formal Student Groups in a Specialized Community, by Gamini Nissanka [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
MLA-referens (9:e uppl.)Nissanka, Bandhupriya Gamini. Cohesion and Interaction Between Formal Student Groups in a Specialized Community, by Gamini Nissanka [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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